Sandsculputures are quite more thoughtful and philosophikal than it seems on the first View. Not only in this kase, where we see Ganesh - all of them:
They illustrate the ephemeral Aspekt of Life and somehow we are all made of Sand, soon their is a Wave taking us back to the endless Ocean... if we overmaster our poor Egos, we kould live very good with this Knowledge - otherwise the Demon within debauchs to a wide Field of stupid Behaviour.
Nobody should take himself or somebody else to seriou - only Life itself is important...
Information about Ganesh:
In Hinduism, Ganesha (or "lord of the hosts," also spelled as Ganesa and Ganesh, sometimes referred to as Ganapati in Marathi, Gujarati and other Indian languages) is a son of Shiva and Parvati, and the husband of Bharati, Riddhi and Siddhi. He is also called Vinayaka in Marathi and Kannada, Vinayagar (in Tamil) and Vinayakudu in Telugu. 'Ga' symbolizes Buddhi (intellect) and 'Na' symbolizes Vijanana (wisdom). Ganesha is thus considered as the master of intellect and wisdom. He is depicted as a pot bellied yellow or red god with four arms and the head of a one-tusked elephant, riding or attended to by a mouse. Typically, His name is usually prefixed with the Hindu title of respect, 'Shree'.
Ganesha acquired his head through varying methods in different stories. In one, Shiva decapitated him because Ganesha refused to allow him to enter the house while his mother, Parvati, was bathing. Shiva was not aware that Parvati had instructed Ganesha to guard the house while she was bathing. He was not even aware that Ganesha was his son, as he had been away from home for some time. Shiva had to give him the new head to placate his wife. In another version, Parvati showed the child off to Shiva, whose face burned his head to ashes, which Brahma told Shiva to replace with the first head he could find—in this case, that of an elephant. The lack of a second tusk is explained by different stories. An avatar of Vishnu, Parashurama, once went to visit Shiva but the way was blocked by Ganesha. Parasurama threw his axe at him and Ganesha, knowing the axe had been given to him by Shiva, allowed it to cut off one of his tusks. Yet another version is that, in the process of writing the Mahabharata (at the dictation of Vyasa), Ganesh found that his pen had broken, and in the urgency of taking down the great words, snapped off his left tusk as a replacement quill.
Ganesha is known as Aumkara, because his body mirrors the shape of the Aum, the elephant god is thus seen as the embodiment of the cosmos. His elephantine head symbolizes the intelligence and beatitude of the elephant, powerful, yet gentle. His vehicle is a mouse known as Mooshika, Mooshikam, Minjur, or Akhu, and this symbolizes the intellect, small enough to find out any secret in the most remote of places. It also signifies his humility, that he espouses the company of one of the smaller creatures.
He is the lord of wisdom, intelligence, education, prudence, luck and fortune, gates, doors, doorways, household and writing. He is the remover of obstacles, and as such it is normal to invoke him before the undertaking of any task with such incantations as Aum Shri Ganeshaya Namah (hail the name of Ganesha), or similar. Throughout India and the Hindu culture, Lord Ganesh is the first idol placed into any new home or abode.
Go to Wikipedia to read more about the Birth of Ganesh and other Stories.